DTC P0717: Input Speed Sensor Circuit Low Voltage
If you don't know anything about automotive electronic's , sensor electrical circuit's ,your best bet would be to take your vehicle to a qualified repair shop.
Finding a wiring diagram ,reading how this sensor work's an testing the electrical circuit using a DVOM - digital volt ohm meter , going by a factory service repair manual .
Diagnostic Fault Information
The input speed sensor (ISS) is a hall-effect type sensor. The sensor faces the 1-2-3-4 and 3-5-R clutch housing machined teeth surface. The sensor receives 8.3-9.3 volts on the input/output speed sensor (ISS/OSS) supply voltage circuit from the transmission control module (TCM). As the 1-2-3-4 and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the machined surface of the 1-2-3-4 and 3-5-R clutch housing. This signal is transmitted through the ISS signal circuit to the control solenoid (w/body and TCM) valve assembly. The control solenoid (w/body and TCM) valve assembly uses the ISS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed and gear ratio.
Engine idling, observe the scan tool Transmission ISS parameter while varying the engine speed. The Transmission ISS parameter should change with the engine speed and not drop out.
Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Your best bet ,take it to a qualified repair shop.
I spent hours in engine and on the internet. I viewed 15 different sites with 15 different answers. Finally found it...The crankshaft position sensor on a 2009 Chevy Traverse (3.6 liter) is as follows: You need to jack up vehicle (or useramps) and climb under. You CANNOT access it from top (as many sites state). On the firewall (vehicle) side of motor, in the center, directly below the exhaust outlet, you will see a silver (aluminum) heat cover/plate. It is held on by 2 bolts. (one 15mm and one 10mm). The sensor is located benind this cover. Once you get this cover off, you will see two seperate sets of wires, wrapped in silver heat deflection tape. The set of wires that extends further to the left go to th CPS (sensor). I used a small extendable automotive mirror to see it. It is in a tight spot, but once you find it, it is easier to access than it looks!!! Took me about 30 minutes total to switch it out. Hope this helps !!! Good luck.
OK. you had the battery disconnected. Here is what you do. Turn on the key. The security light will begin to flash. Wait (about 10 minutes) with the key in the ON position. The security light will stop flashing. TURN OFF the key. Then, turn on the key and start the car. Security system is supposed to prevent theft for a 10 minute delay. This usually discourages any thief. This will work, You just need to be patient with the 10 minutes. It seems like an hour when you wait ten minutes for that security light to stop flashing.
Everyone always says crank sensor, but it is rarely ever the sensor. Crank the engine and look at your RPM gauge. If the gauge even moves a tiny bit, your sensor is good. You also need a fully charged battery to start your car in the cold. It seems like you are having trouble getting your vehicle started. There are 4 things you need for an engine to run. Fuel, Air, Spark, Compression. You need to test for all of these. Is there gas in tank? Can you hear the fuel pump turn on when the key is the RUN position? Is there air going in and out of the engine? If all of those check out, you'll have to get your hands dirty with the next tests. You'll need to check fuel pressure, test for spark, and check compression.